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Premium Undercarriage Parts
Manufactured in China

Quanzhou Yongsheng Machinery Parts Co., Ltd is a trusted global supplier of high-quality track rollers, idlers, sprockets, track links, and complete track systems for excavators, bulldozers, and other heavy machinery.

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About Quanzhou Yongsheng

Quanzhou Yongsheng Machinery Parts Co., Ltd is a leading manufacturer and exporter of undercarriage components for construction and mining machinery. With years of experience and a commitment to quality, we serve clients across Asia, Africa, the Middle East, and South America.

Our product range includes track rollers (carrier rollers), track idlers, drive sprockets, track links, track chains, track groups, and associated bolts and nuts. All products are engineered to meet or exceed OEM specifications, ensuring durability and performance in the most demanding environments.

ISO-Certified Manufacturing Standards
Global Export Experience Since 2007
24-Hour Customer Support
Track Roller Assembly Sprocket and Track Link Idler Wheel Track Chain Assembly

Our Product Range

High-performance undercarriage components designed for durability, precision, and compatibility with major OEM models.

Track Roller

Track Roller (Carrier Roller)

Sealed and lubricated for long service life. Available in multiple sizes for excavators and dozers.

  • • High-strength alloy steel
  • • Double-sealed bearings
  • • Heat-treated rollers
  • • OEM-compatible models
Track Idler

Track Idler

Front and rear idlers with reinforced bushings and wear-resistant surfaces.

  • • Adjustable tension capability
  • • Replaceable bushings
  • • Corrosion-resistant coating
  • • For 3–50 ton machines
Drive Sprocket

Drive Sprocket

Precision-toothed sprockets for reliable power transmission and reduced wear.

  • • Forged and hardened teeth
  • • Bolt-on or integral hub
  • • Compatible with standard pitch
  • • High fatigue resistance
Track Link

Track Link

Individual and connected links with high tensile strength and wear resistance.

  • • One-piece forged design
  • • Hardened pin holes
  • • Interchangeable with OEM
  • • For rocky and abrasive terrain
Track Chain

Track Chain Assembly

Complete track chains pre-assembled and tested for immediate installation.

  • • Pre-tensioned and sealed
  • • Full-length or half-length
  • • Includes pins and bushings
  • • Reduced downtime
Track Group

Track Group (Undercarriage Kit)

Complete undercarriage kits including rollers, idlers, sprockets, and track.

  • • Machine-specific matching
  • • All components pre-tested
  • • Cost-effective solution
  • • Fast global shipping
Component Image

Track Bolts & Nuts

High-tensile fasteners for secure attachment of undercarriage components.

  • • Grade 10.9 and above
  • • Anti-loosening design
  • • Zinc or black oxide finish
  • • Custom lengths available
Assembly Image

Custom Undercarriage Solutions

Tailored parts and assemblies based on customer specifications and drawings.

  • • OEM reverse engineering
  • • Prototype development
  • • Bulk production support
  • • Quality assurance reports

Why Choose China-YSM?

We combine advanced manufacturing, strict quality control, and global logistics to deliver reliable undercarriage solutions.

Quality Assurance

Every component undergoes rigorous testing for hardness, load capacity, and wear resistance.

Fast Delivery

Global shipping via air and sea. In-stock items dispatched within 48 hours.

Customer Support

24/7 service center with technical assistance and order tracking.

Competitive Pricing

Direct factory pricing with volume discounts and long-term partnership benefits.

15+
Years in Business
50+
Countries Served
10M+
Parts Shipped
99.2%
Customer Satisfaction

Frequently Asked Questions

Are your parts compatible with Komatsu, Hitachi, and Caterpillar machines?

Yes, our undercarriage components are engineered to match OEM specifications for major brands including Komatsu, Hitachi, Caterpillar, Kobelco, Hyundai, and Volvo.

What is the typical delivery time?

In-stock items are shipped within 48 hours. Custom orders typically take 15–25 days depending on complexity and quantity.

Do you offer samples?

Yes, we provide samples for evaluation. Sample cost and shipping are charged initially but can be refunded upon placing a bulk order.

What certifications do you have?

We follow ISO manufacturing standards and provide material test reports, hardness certificates, and inspection documentation upon request.

Can you manufacture custom parts?

Absolutely. We specialize in OEM reverse engineering and can produce parts based on your drawings, samples, or specifications.

Get in Touch

Reach out to our 24-hour service center for inquiries, quotes, or technical support.

Contact Information

Phone: +86-595-82669996

Mobile: +86-18606961587

Fax: +86-595-82669992

Email: sales@china-ysm.com

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